Before the events leading to the Godswar, all the inhabitants of the Whorl were human. When Surya decided to tinker with his chosen people, it sparked the War in Heaven and Earth. In the aftermath, with the death of Mahadeva, the Whorl saw the rise of multiple populations of multiple different races created from baseline human stock through divine magic.
While these races were originally created from those humans who were particularly devoted to a particular god, the intervening centuries have seen plenty of intermingling, conversions, and cultural drift. There is no longer any particular expectation that a gold dwarf, say, is a worshiper of Lakshmi or even that a tiefling necessarily serves Surya the archfiend.